1.2 Convection Currents and the Mantle

---

Vocabulary

---

Heat transfer: when energy moves from a warmer object to a cooler object
Radiation: heat gets transferred through empty space
Conduction: heat gets transferred by direct particles of matter
Convection: heat gets transferred through heated liquid
Density: the measurement of mass there is in a volume of a substance
Convection current: the flow of when heat gets transferred through liquid

Outline

---

Radiation

• a flame or and an open fire are forms of radiation
  • these are pretty common around the house

Conduction

• the heat from a soup transfering to a metal spoon is a form of radiation
  • this happens in a lot of our homes

Convection

• water heating in a pot is a form of convection
  • this is common use in the kitchen

Convection in Earth's Mantle

• Earth's mantle responds to heat
  • heat from the core and mantle cause convection currents to form in the asthenosphere

back to home page